I have two infinity 10" subs and an alpine amp installed in my truck, the subs are mounted in a box provided durring purchese. It takes up my back seat floor, thinking of taking out my front center seat and custom building a box with one 10" down firing. This way i still have my front center seat and it will be carped to match. Anyone have a full size (or two) 10" subs in their quad cab second gen ? I would like to have a back seat and floor, shallow 10" is no option they dont produce enough bass for me.

 

There are many variations of both up and down firing dual 10" sub boxes that fill the space directly under the back seat and still allow plenty of foot room. Do a google search

 

I have a JL stealthbox with 2x 10" RF subs under my backseat, love it and sounds good, keeps the back seat usable.

edit: and the box is hidden from view